diff options
Diffstat (limited to 'drivers/tty/serial/sh-sci.c')
| -rw-r--r-- | drivers/tty/serial/sh-sci.c | 309 |
1 files changed, 154 insertions, 155 deletions
diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c index a85e7b9a2e..f738980a8b 100644 --- a/drivers/tty/serial/sh-sci.c +++ b/drivers/tty/serial/sh-sci.c @@ -576,16 +576,16 @@ static void sci_start_tx(struct uart_port *port) #ifdef CONFIG_SERIAL_SH_SCI_DMA if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) { - u16 new, scr = serial_port_in(port, SCSCR); + u16 new, scr = sci_serial_in(port, SCSCR); if (s->chan_tx) new = scr | SCSCR_TDRQE; else new = scr & ~SCSCR_TDRQE; if (new != scr) - serial_port_out(port, SCSCR, new); + sci_serial_out(port, SCSCR, new); } - if (s->chan_tx && !uart_circ_empty(&s->port.state->xmit) && + if (s->chan_tx && !kfifo_is_empty(&port->state->port.xmit_fifo) && dma_submit_error(s->cookie_tx)) { if (s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE) /* Switch irq from SCIF to DMA */ @@ -599,7 +599,7 @@ static void sci_start_tx(struct uart_port *port) if (!s->chan_tx || s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE || port->type == PORT_SCIFA || port->type == PORT_SCIFB) { /* Set TIE (Transmit Interrupt Enable) bit in SCSCR */ - ctrl = serial_port_in(port, SCSCR); + ctrl = sci_serial_in(port, SCSCR); /* * For SCI, TE (transmit enable) must be set after setting TIE @@ -609,7 +609,7 @@ static void sci_start_tx(struct uart_port *port) if (port->type == PORT_SCI) ctrl |= SCSCR_TE; - serial_port_out(port, SCSCR, ctrl | SCSCR_TIE); + sci_serial_out(port, SCSCR, ctrl | SCSCR_TIE); } } @@ -618,14 +618,14 @@ static void sci_stop_tx(struct uart_port *port) unsigned short ctrl; /* Clear TIE (Transmit Interrupt Enable) bit in SCSCR */ - ctrl = serial_port_in(port, SCSCR); + ctrl = sci_serial_in(port, SCSCR); if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) ctrl &= ~SCSCR_TDRQE; ctrl &= ~SCSCR_TIE; - serial_port_out(port, SCSCR, ctrl); + sci_serial_out(port, SCSCR, ctrl); #ifdef CONFIG_SERIAL_SH_SCI_DMA if (to_sci_port(port)->chan_tx && @@ -640,41 +640,40 @@ static void sci_start_rx(struct uart_port *port) { unsigned short ctrl; - ctrl = serial_port_in(port, SCSCR) | port_rx_irq_mask(port); + ctrl = sci_serial_in(port, SCSCR) | port_rx_irq_mask(port); if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) ctrl &= ~SCSCR_RDRQE; - serial_port_out(port, SCSCR, ctrl); + sci_serial_out(port, SCSCR, ctrl); } static void sci_stop_rx(struct uart_port *port) { unsigned short ctrl; - ctrl = serial_port_in(port, SCSCR); + ctrl = sci_serial_in(port, SCSCR); if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) ctrl &= ~SCSCR_RDRQE; ctrl &= ~port_rx_irq_mask(port); - serial_port_out(port, SCSCR, ctrl); + sci_serial_out(port, SCSCR, ctrl); } static void sci_clear_SCxSR(struct uart_port *port, unsigned int mask) { if (port->type == PORT_SCI) { /* Just store the mask */ - serial_port_out(port, SCxSR, mask); + sci_serial_out(port, SCxSR, mask); } else if (to_sci_port(port)->params->overrun_mask == SCIFA_ORER) { /* SCIFA/SCIFB and SCIF on SH7705/SH7720/SH7721 */ /* Only clear the status bits we want to clear */ - serial_port_out(port, SCxSR, - serial_port_in(port, SCxSR) & mask); + sci_serial_out(port, SCxSR, sci_serial_in(port, SCxSR) & mask); } else { /* Store the mask, clear parity/framing errors */ - serial_port_out(port, SCxSR, mask & ~(SCIF_FERC | SCIF_PERC)); + sci_serial_out(port, SCxSR, mask & ~(SCIF_FERC | SCIF_PERC)); } } @@ -688,7 +687,7 @@ static int sci_poll_get_char(struct uart_port *port) int c; do { - status = serial_port_in(port, SCxSR); + status = sci_serial_in(port, SCxSR); if (status & SCxSR_ERRORS(port)) { sci_clear_SCxSR(port, SCxSR_ERROR_CLEAR(port)); continue; @@ -699,10 +698,10 @@ static int sci_poll_get_char(struct uart_port *port) if (!(status & SCxSR_RDxF(port))) return NO_POLL_CHAR; - c = serial_port_in(port, SCxRDR); + c = sci_serial_in(port, SCxRDR); /* Dummy read */ - serial_port_in(port, SCxSR); + sci_serial_in(port, SCxSR); sci_clear_SCxSR(port, SCxSR_RDxF_CLEAR(port)); return c; @@ -714,10 +713,10 @@ static void sci_poll_put_char(struct uart_port *port, unsigned char c) unsigned short status; do { - status = serial_port_in(port, SCxSR); + status = sci_serial_in(port, SCxSR); } while (!(status & SCxSR_TDxE(port))); - serial_port_out(port, SCxTDR, c); + sci_serial_out(port, SCxTDR, c); sci_clear_SCxSR(port, SCxSR_TDxE_CLEAR(port) & ~SCxSR_TEND(port)); } #endif /* CONFIG_CONSOLE_POLL || CONFIG_SERIAL_SH_SCI_CONSOLE || @@ -736,8 +735,8 @@ static void sci_init_pins(struct uart_port *port, unsigned int cflag) } if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) { - u16 data = serial_port_in(port, SCPDR); - u16 ctrl = serial_port_in(port, SCPCR); + u16 data = sci_serial_in(port, SCPDR); + u16 ctrl = sci_serial_in(port, SCPCR); /* Enable RXD and TXD pin functions */ ctrl &= ~(SCPCR_RXDC | SCPCR_TXDC); @@ -756,10 +755,10 @@ static void sci_init_pins(struct uart_port *port, unsigned int cflag) /* Enable CTS# pin function */ ctrl &= ~SCPCR_CTSC; } - serial_port_out(port, SCPDR, data); - serial_port_out(port, SCPCR, ctrl); + sci_serial_out(port, SCPDR, data); + sci_serial_out(port, SCPCR, ctrl); } else if (sci_getreg(port, SCSPTR)->size) { - u16 status = serial_port_in(port, SCSPTR); + u16 status = sci_serial_in(port, SCSPTR); /* RTS# is always output; and active low, unless autorts */ status |= SCSPTR_RTSIO; @@ -769,7 +768,7 @@ static void sci_init_pins(struct uart_port *port, unsigned int cflag) status &= ~SCSPTR_RTSDT; /* CTS# and SCK are inputs */ status &= ~(SCSPTR_CTSIO | SCSPTR_SCKIO); - serial_port_out(port, SCSPTR, status); + sci_serial_out(port, SCSPTR, status); } } @@ -781,13 +780,13 @@ static int sci_txfill(struct uart_port *port) reg = sci_getreg(port, SCTFDR); if (reg->size) - return serial_port_in(port, SCTFDR) & fifo_mask; + return sci_serial_in(port, SCTFDR) & fifo_mask; reg = sci_getreg(port, SCFDR); if (reg->size) - return serial_port_in(port, SCFDR) >> 8; + return sci_serial_in(port, SCFDR) >> 8; - return !(serial_port_in(port, SCxSR) & SCI_TDRE); + return !(sci_serial_in(port, SCxSR) & SCI_TDRE); } static int sci_txroom(struct uart_port *port) @@ -803,13 +802,13 @@ static int sci_rxfill(struct uart_port *port) reg = sci_getreg(port, SCRFDR); if (reg->size) - return serial_port_in(port, SCRFDR) & fifo_mask; + return sci_serial_in(port, SCRFDR) & fifo_mask; reg = sci_getreg(port, SCFDR); if (reg->size) - return serial_port_in(port, SCFDR) & fifo_mask; + return sci_serial_in(port, SCFDR) & fifo_mask; - return (serial_port_in(port, SCxSR) & SCxSR_RDxF(port)) != 0; + return (sci_serial_in(port, SCxSR) & SCxSR_RDxF(port)) != 0; } /* ********************************************************************** * @@ -818,20 +817,20 @@ static int sci_rxfill(struct uart_port *port) static void sci_transmit_chars(struct uart_port *port) { - struct circ_buf *xmit = &port->state->xmit; + struct tty_port *tport = &port->state->port; unsigned int stopped = uart_tx_stopped(port); unsigned short status; unsigned short ctrl; int count; - status = serial_port_in(port, SCxSR); + status = sci_serial_in(port, SCxSR); if (!(status & SCxSR_TDxE(port))) { - ctrl = serial_port_in(port, SCSCR); - if (uart_circ_empty(xmit)) + ctrl = sci_serial_in(port, SCSCR); + if (kfifo_is_empty(&tport->xmit_fifo)) ctrl &= ~SCSCR_TIE; else ctrl |= SCSCR_TIE; - serial_port_out(port, SCSCR, ctrl); + sci_serial_out(port, SCSCR, ctrl); return; } @@ -843,33 +842,32 @@ static void sci_transmit_chars(struct uart_port *port) if (port->x_char) { c = port->x_char; port->x_char = 0; - } else if (!uart_circ_empty(xmit) && !stopped) { - c = xmit->buf[xmit->tail]; - xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1); - } else if (port->type == PORT_SCI && uart_circ_empty(xmit)) { - ctrl = serial_port_in(port, SCSCR); - ctrl &= ~SCSCR_TE; - serial_port_out(port, SCSCR, ctrl); - return; - } else { + } else if (stopped || !kfifo_get(&tport->xmit_fifo, &c)) { + if (port->type == PORT_SCI && + kfifo_is_empty(&tport->xmit_fifo)) { + ctrl = sci_serial_in(port, SCSCR); + ctrl &= ~SCSCR_TE; + sci_serial_out(port, SCSCR, ctrl); + return; + } break; } - serial_port_out(port, SCxTDR, c); + sci_serial_out(port, SCxTDR, c); port->icount.tx++; } while (--count > 0); sci_clear_SCxSR(port, SCxSR_TDxE_CLEAR(port)); - if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) + if (kfifo_len(&tport->xmit_fifo) < WAKEUP_CHARS) uart_write_wakeup(port); - if (uart_circ_empty(xmit)) { + if (kfifo_is_empty(&tport->xmit_fifo)) { if (port->type == PORT_SCI) { - ctrl = serial_port_in(port, SCSCR); + ctrl = sci_serial_in(port, SCSCR); ctrl &= ~SCSCR_TIE; ctrl |= SCSCR_TEIE; - serial_port_out(port, SCSCR, ctrl); + sci_serial_out(port, SCSCR, ctrl); } sci_stop_tx(port); @@ -883,7 +881,7 @@ static void sci_receive_chars(struct uart_port *port) unsigned short status; unsigned char flag; - status = serial_port_in(port, SCxSR); + status = sci_serial_in(port, SCxSR); if (!(status & SCxSR_RDxF(port))) return; @@ -896,7 +894,7 @@ static void sci_receive_chars(struct uart_port *port) break; if (port->type == PORT_SCI) { - char c = serial_port_in(port, SCxRDR); + char c = sci_serial_in(port, SCxRDR); if (uart_handle_sysrq_char(port, c)) count = 0; else @@ -907,11 +905,11 @@ static void sci_receive_chars(struct uart_port *port) if (port->type == PORT_SCIF || port->type == PORT_HSCIF) { - status = serial_port_in(port, SCxSR); - c = serial_port_in(port, SCxRDR); + status = sci_serial_in(port, SCxSR); + c = sci_serial_in(port, SCxRDR); } else { - c = serial_port_in(port, SCxRDR); - status = serial_port_in(port, SCxSR); + c = sci_serial_in(port, SCxRDR); + status = sci_serial_in(port, SCxSR); } if (uart_handle_sysrq_char(port, c)) { count--; i--; @@ -932,7 +930,7 @@ static void sci_receive_chars(struct uart_port *port) } } - serial_port_in(port, SCxSR); /* dummy read */ + sci_serial_in(port, SCxSR); /* dummy read */ sci_clear_SCxSR(port, SCxSR_RDxF_CLEAR(port)); copied += count; @@ -944,8 +942,8 @@ static void sci_receive_chars(struct uart_port *port) tty_flip_buffer_push(tport); } else { /* TTY buffers full; read from RX reg to prevent lockup */ - serial_port_in(port, SCxRDR); - serial_port_in(port, SCxSR); /* dummy read */ + sci_serial_in(port, SCxRDR); + sci_serial_in(port, SCxSR); /* dummy read */ sci_clear_SCxSR(port, SCxSR_RDxF_CLEAR(port)); } } @@ -953,7 +951,7 @@ static void sci_receive_chars(struct uart_port *port) static int sci_handle_errors(struct uart_port *port) { int copied = 0; - unsigned short status = serial_port_in(port, SCxSR); + unsigned short status = sci_serial_in(port, SCxSR); struct tty_port *tport = &port->state->port; struct sci_port *s = to_sci_port(port); @@ -1000,10 +998,10 @@ static int sci_handle_fifo_overrun(struct uart_port *port) if (!reg->size) return 0; - status = serial_port_in(port, s->params->overrun_reg); + status = sci_serial_in(port, s->params->overrun_reg); if (status & s->params->overrun_mask) { status &= ~s->params->overrun_mask; - serial_port_out(port, s->params->overrun_reg, status); + sci_serial_out(port, s->params->overrun_reg, status); port->icount.overrun++; @@ -1018,7 +1016,7 @@ static int sci_handle_fifo_overrun(struct uart_port *port) static int sci_handle_breaks(struct uart_port *port) { int copied = 0; - unsigned short status = serial_port_in(port, SCxSR); + unsigned short status = sci_serial_in(port, SCxSR); struct tty_port *tport = &port->state->port; if (uart_handle_break(port)) @@ -1051,7 +1049,7 @@ static int scif_set_rtrg(struct uart_port *port, int rx_trig) /* HSCIF can be set to an arbitrary level. */ if (sci_getreg(port, HSRTRGR)->size) { - serial_port_out(port, HSRTRGR, rx_trig); + sci_serial_out(port, HSRTRGR, rx_trig); return rx_trig; } @@ -1092,9 +1090,9 @@ static int scif_set_rtrg(struct uart_port *port, int rx_trig) return 1; } - serial_port_out(port, SCFCR, - (serial_port_in(port, SCFCR) & - ~(SCFCR_RTRG1 | SCFCR_RTRG0)) | bits); + sci_serial_out(port, SCFCR, + (sci_serial_in(port, SCFCR) & + ~(SCFCR_RTRG1 | SCFCR_RTRG0)) | bits); return rx_trig; } @@ -1102,9 +1100,9 @@ static int scif_set_rtrg(struct uart_port *port, int rx_trig) static int scif_rtrg_enabled(struct uart_port *port) { if (sci_getreg(port, HSRTRGR)->size) - return serial_port_in(port, HSRTRGR) != 0; + return sci_serial_in(port, HSRTRGR) != 0; else - return (serial_port_in(port, SCFCR) & + return (sci_serial_in(port, SCFCR) & (SCFCR_RTRG0 | SCFCR_RTRG1)) != 0; } @@ -1200,7 +1198,7 @@ static void sci_dma_tx_complete(void *arg) { struct sci_port *s = arg; struct uart_port *port = &s->port; - struct circ_buf *xmit = &port->state->xmit; + struct tty_port *tport = &port->state->port; unsigned long flags; dev_dbg(port->dev, "%s(%d)\n", __func__, port->line); @@ -1209,18 +1207,18 @@ static void sci_dma_tx_complete(void *arg) uart_xmit_advance(port, s->tx_dma_len); - if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS) + if (kfifo_len(&tport->xmit_fifo) < WAKEUP_CHARS) uart_write_wakeup(port); - if (!uart_circ_empty(xmit)) { + if (!kfifo_is_empty(&tport->xmit_fifo)) { s->cookie_tx = 0; schedule_work(&s->work_tx); } else { s->cookie_tx = -EINVAL; if (port->type == PORT_SCIFA || port->type == PORT_SCIFB || s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE) { - u16 ctrl = serial_port_in(port, SCSCR); - serial_port_out(port, SCSCR, ctrl & ~SCSCR_TIE); + u16 ctrl = sci_serial_in(port, SCSCR); + sci_serial_out(port, SCSCR, ctrl & ~SCSCR_TIE); if (s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE) { /* Switch irq from DMA to SCIF */ dmaengine_pause(s->chan_tx_saved); @@ -1259,6 +1257,7 @@ static int sci_dma_rx_find_active(struct sci_port *s) return -1; } +/* Must only be called with uart_port_lock taken */ static void sci_dma_rx_chan_invalidate(struct sci_port *s) { unsigned int i; @@ -1272,9 +1271,14 @@ static void sci_dma_rx_chan_invalidate(struct sci_port *s) static void sci_dma_rx_release(struct sci_port *s) { struct dma_chan *chan = s->chan_rx_saved; + struct uart_port *port = &s->port; + unsigned long flags; + uart_port_lock_irqsave(port, &flags); s->chan_rx_saved = NULL; sci_dma_rx_chan_invalidate(s); + uart_port_unlock_irqrestore(port, flags); + dmaengine_terminate_sync(chan); dma_free_coherent(chan->device->dev, s->buf_len_rx * 2, s->rx_buf[0], sg_dma_address(&s->sg_rx[0])); @@ -1296,7 +1300,7 @@ static void sci_dma_rx_reenable_irq(struct sci_port *s) u16 scr; /* Direct new serial port interrupts back to CPU */ - scr = serial_port_in(port, SCSCR); + scr = sci_serial_in(port, SCSCR); if (port->type == PORT_SCIFA || port->type == PORT_SCIFB || s->cfg->regtype == SCIx_RZ_SCIFA_REGTYPE) { enable_irq(s->irqs[SCIx_RXI_IRQ]); @@ -1305,7 +1309,7 @@ static void sci_dma_rx_reenable_irq(struct sci_port *s) else scr &= ~SCSCR_RDRQE; } - serial_port_out(port, SCSCR, scr | SCSCR_RIE); + sci_serial_out(port, SCSCR, scr | SCSCR_RIE); } static void sci_dma_rx_complete(void *arg) @@ -1320,14 +1324,14 @@ static void sci_dma_rx_complete(void *arg) dev_dbg(port->dev, "%s(%d) active cookie %d\n", __func__, port->line, s->active_rx); + hrtimer_cancel(&s->rx_timer); + uart_port_lock_irqsave(port, &flags); active = sci_dma_rx_find_active(s); if (active >= 0) count = sci_dma_rx_push(s, s->rx_buf[active], s->buf_len_rx); - start_hrtimer_us(&s->rx_timer, s->rx_timeout); - if (count) tty_flip_buffer_push(&port->state->port); @@ -1350,17 +1354,18 @@ static void sci_dma_rx_complete(void *arg) uart_port_unlock_irqrestore(port, flags); dev_dbg(port->dev, "%s: cookie %d #%d, new active cookie %d\n", __func__, s->cookie_rx[active], active, s->active_rx); + + start_hrtimer_us(&s->rx_timer, s->rx_timeout); + return; fail: - uart_port_unlock_irqrestore(port, flags); - dev_warn(port->dev, "Failed submitting Rx DMA descriptor\n"); /* Switch to PIO */ - uart_port_lock_irqsave(port, &flags); dmaengine_terminate_async(chan); sci_dma_rx_chan_invalidate(s); sci_dma_rx_reenable_irq(s); uart_port_unlock_irqrestore(port, flags); + dev_warn(port->dev, "Failed submitting Rx DMA descriptor\n"); } static void sci_dma_tx_release(struct sci_port *s) @@ -1425,10 +1430,10 @@ static void sci_dma_tx_work_fn(struct work_struct *work) struct dma_async_tx_descriptor *desc; struct dma_chan *chan = s->chan_tx; struct uart_port *port = &s->port; - struct circ_buf *xmit = &port->state->xmit; + struct tty_port *tport = &port->state->port; unsigned long flags; + unsigned int tail; dma_addr_t buf; - int head, tail; /* * DMA is idle now. @@ -1438,10 +1443,9 @@ static void sci_dma_tx_work_fn(struct work_struct *work) * consistent xmit buffer state. */ uart_port_lock_irq(port); - head = xmit->head; - tail = xmit->tail; + s->tx_dma_len = kfifo_out_linear(&tport->xmit_fifo, &tail, + UART_XMIT_SIZE); buf = s->tx_dma_addr + tail; - s->tx_dma_len = CIRC_CNT_TO_END(head, tail, UART_XMIT_SIZE); if (!s->tx_dma_len) { /* Transmit buffer has been flushed */ uart_port_unlock_irq(port); @@ -1470,8 +1474,8 @@ static void sci_dma_tx_work_fn(struct work_struct *work) } uart_port_unlock_irq(port); - dev_dbg(port->dev, "%s: %p: %d...%d, cookie %d\n", - __func__, xmit->buf, tail, head, s->cookie_tx); + dev_dbg(port->dev, "%s: %p: %u, cookie %d\n", + __func__, tport->xmit_buf, tail, s->cookie_tx); dma_async_issue_pending(chan); return; @@ -1586,6 +1590,7 @@ static struct dma_chan *sci_request_dma_chan(struct uart_port *port, static void sci_request_dma(struct uart_port *port) { struct sci_port *s = to_sci_port(port); + struct tty_port *tport = &port->state->port; struct dma_chan *chan; dev_dbg(port->dev, "%s: port %d\n", __func__, port->line); @@ -1614,7 +1619,7 @@ static void sci_request_dma(struct uart_port *port) if (chan) { /* UART circular tx buffer is an aligned page. */ s->tx_dma_addr = dma_map_single(chan->device->dev, - port->state->xmit.buf, + tport->xmit_buf, UART_XMIT_SIZE, DMA_TO_DEVICE); if (dma_mapping_error(chan->device->dev, s->tx_dma_addr)) { @@ -1623,7 +1628,7 @@ static void sci_request_dma(struct uart_port *port) } else { dev_dbg(port->dev, "%s: mapped %lu@%p to %pad\n", __func__, UART_XMIT_SIZE, - port->state->xmit.buf, &s->tx_dma_addr); + tport->xmit_buf, &s->tx_dma_addr); INIT_WORK(&s->work_tx, sci_dma_tx_work_fn); s->chan_tx_saved = s->chan_tx = chan; @@ -1714,8 +1719,8 @@ static irqreturn_t sci_rx_interrupt(int irq, void *ptr) #ifdef CONFIG_SERIAL_SH_SCI_DMA if (s->chan_rx) { - u16 scr = serial_port_in(port, SCSCR); - u16 ssr = serial_port_in(port, SCxSR); + u16 scr = sci_serial_in(port, SCSCR); + u16 ssr = sci_serial_in(port, SCxSR); /* Disable future Rx interrupts */ if (port->type == PORT_SCIFA || port->type == PORT_SCIFB || @@ -1733,10 +1738,10 @@ static irqreturn_t sci_rx_interrupt(int irq, void *ptr) scr &= ~SCSCR_RIE; } - serial_port_out(port, SCSCR, scr); + sci_serial_out(port, SCSCR, scr); /* Clear current interrupt */ - serial_port_out(port, SCxSR, - ssr & ~(SCIF_DR | SCxSR_RDxF(port))); + sci_serial_out(port, SCxSR, + ssr & ~(SCIF_DR | SCxSR_RDxF(port))); dev_dbg(port->dev, "Rx IRQ %lu: setup t-out in %u us\n", jiffies, s->rx_timeout); start_hrtimer_us(&s->rx_timer, s->rx_timeout); @@ -1786,9 +1791,9 @@ static irqreturn_t sci_tx_end_interrupt(int irq, void *ptr) return sci_tx_interrupt(irq, ptr); uart_port_lock_irqsave(port, &flags); - ctrl = serial_port_in(port, SCSCR); + ctrl = sci_serial_in(port, SCSCR); ctrl &= ~(SCSCR_TE | SCSCR_TEIE); - serial_port_out(port, SCSCR, ctrl); + sci_serial_out(port, SCSCR, ctrl); uart_port_unlock_irqrestore(port, flags); return IRQ_HANDLED; @@ -1802,7 +1807,7 @@ static irqreturn_t sci_br_interrupt(int irq, void *ptr) sci_handle_breaks(port); /* drop invalid character received before break was detected */ - serial_port_in(port, SCxRDR); + sci_serial_in(port, SCxRDR); sci_clear_SCxSR(port, SCxSR_BREAK_CLEAR(port)); @@ -1816,7 +1821,7 @@ static irqreturn_t sci_er_interrupt(int irq, void *ptr) if (s->irqs[SCIx_ERI_IRQ] == s->irqs[SCIx_BRI_IRQ]) { /* Break and Error interrupts are muxed */ - unsigned short ssr_status = serial_port_in(port, SCxSR); + unsigned short ssr_status = sci_serial_in(port, SCxSR); /* Break Interrupt */ if (ssr_status & SCxSR_BRK(port)) @@ -1831,7 +1836,7 @@ static irqreturn_t sci_er_interrupt(int irq, void *ptr) if (port->type == PORT_SCI) { if (sci_handle_errors(port)) { /* discard character in rx buffer */ - serial_port_in(port, SCxSR); + sci_serial_in(port, SCxSR); sci_clear_SCxSR(port, SCxSR_RDxF_CLEAR(port)); } } else { @@ -1856,12 +1861,12 @@ static irqreturn_t sci_mpxed_interrupt(int irq, void *ptr) struct sci_port *s = to_sci_port(port); irqreturn_t ret = IRQ_NONE; - ssr_status = serial_port_in(port, SCxSR); - scr_status = serial_port_in(port, SCSCR); + ssr_status = sci_serial_in(port, SCxSR); + scr_status = sci_serial_in(port, SCSCR); if (s->params->overrun_reg == SCxSR) orer_status = ssr_status; else if (sci_getreg(port, s->params->overrun_reg)->size) - orer_status = serial_port_in(port, s->params->overrun_reg); + orer_status = sci_serial_in(port, s->params->overrun_reg); err_enabled = scr_status & port_rx_irq_mask(port); @@ -2038,7 +2043,7 @@ static void sci_free_irq(struct sci_port *port) static unsigned int sci_tx_empty(struct uart_port *port) { - unsigned short status = serial_port_in(port, SCxSR); + unsigned short status = sci_serial_in(port, SCxSR); unsigned short in_tx_fifo = sci_txfill(port); return (status & SCxSR_TEND(port)) && !in_tx_fifo ? TIOCSER_TEMT : 0; @@ -2047,27 +2052,27 @@ static unsigned int sci_tx_empty(struct uart_port *port) static void sci_set_rts(struct uart_port *port, bool state) { if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) { - u16 data = serial_port_in(port, SCPDR); + u16 data = sci_serial_in(port, SCPDR); /* Active low */ if (state) data &= ~SCPDR_RTSD; else data |= SCPDR_RTSD; - serial_port_out(port, SCPDR, data); + sci_serial_out(port, SCPDR, data); /* RTS# is output */ - serial_port_out(port, SCPCR, - serial_port_in(port, SCPCR) | SCPCR_RTSC); + sci_serial_out(port, SCPCR, + sci_serial_in(port, SCPCR) | SCPCR_RTSC); } else if (sci_getreg(port, SCSPTR)->size) { - u16 ctrl = serial_port_in(port, SCSPTR); + u16 ctrl = sci_serial_in(port, SCSPTR); /* Active low */ if (state) ctrl &= ~SCSPTR_RTSDT; else ctrl |= SCSPTR_RTSDT; - serial_port_out(port, SCSPTR, ctrl); + sci_serial_out(port, SCSPTR, ctrl); } } @@ -2075,10 +2080,10 @@ static bool sci_get_cts(struct uart_port *port) { if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) { /* Active low */ - return !(serial_port_in(port, SCPDR) & SCPDR_CTSD); + return !(sci_serial_in(port, SCPDR) & SCPDR_CTSD); } else if (sci_getreg(port, SCSPTR)->size) { /* Active low */ - return !(serial_port_in(port, SCSPTR) & SCSPTR_CTSDT); + return !(sci_serial_in(port, SCSPTR) & SCSPTR_CTSDT); } return true; @@ -2108,9 +2113,8 @@ static void sci_set_mctrl(struct uart_port *port, unsigned int mctrl) */ reg = sci_getreg(port, SCFCR); if (reg->size) - serial_port_out(port, SCFCR, - serial_port_in(port, SCFCR) | - SCFCR_LOOP); + sci_serial_out(port, SCFCR, + sci_serial_in(port, SCFCR) | SCFCR_LOOP); } mctrl_gpio_set(s->gpios, mctrl); @@ -2120,21 +2124,21 @@ static void sci_set_mctrl(struct uart_port *port, unsigned int mctrl) if (!(mctrl & TIOCM_RTS)) { /* Disable Auto RTS */ - serial_port_out(port, SCFCR, - serial_port_in(port, SCFCR) & ~SCFCR_MCE); + sci_serial_out(port, SCFCR, + sci_serial_in(port, SCFCR) & ~SCFCR_MCE); /* Clear RTS */ sci_set_rts(port, 0); } else if (s->autorts) { if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) { /* Enable RTS# pin function */ - serial_port_out(port, SCPCR, - serial_port_in(port, SCPCR) & ~SCPCR_RTSC); + sci_serial_out(port, SCPCR, + sci_serial_in(port, SCPCR) & ~SCPCR_RTSC); } /* Enable Auto RTS */ - serial_port_out(port, SCFCR, - serial_port_in(port, SCFCR) | SCFCR_MCE); + sci_serial_out(port, SCFCR, + sci_serial_in(port, SCFCR) | SCFCR_MCE); } else { /* Set RTS */ sci_set_rts(port, 1); @@ -2187,8 +2191,8 @@ static void sci_break_ctl(struct uart_port *port, int break_state) } uart_port_lock_irqsave(port, &flags); - scsptr = serial_port_in(port, SCSPTR); - scscr = serial_port_in(port, SCSCR); + scsptr = sci_serial_in(port, SCSPTR); + scscr = sci_serial_in(port, SCSCR); if (break_state == -1) { scsptr = (scsptr | SCSPTR_SPB2IO) & ~SCSPTR_SPB2DT; @@ -2198,8 +2202,8 @@ static void sci_break_ctl(struct uart_port *port, int break_state) scscr |= SCSCR_TE; } - serial_port_out(port, SCSPTR, scsptr); - serial_port_out(port, SCSCR, scscr); + sci_serial_out(port, SCSPTR, scsptr); + sci_serial_out(port, SCSCR, scscr); uart_port_unlock_irqrestore(port, flags); } @@ -2239,9 +2243,9 @@ static void sci_shutdown(struct uart_port *port) * Stop RX and TX, disable related interrupts, keep clock source * and HSCIF TOT bits */ - scr = serial_port_in(port, SCSCR); - serial_port_out(port, SCSCR, scr & - (SCSCR_CKE1 | SCSCR_CKE0 | s->hscif_tot)); + scr = sci_serial_in(port, SCSCR); + sci_serial_out(port, SCSCR, + scr & (SCSCR_CKE1 | SCSCR_CKE0 | s->hscif_tot)); uart_port_unlock_irqrestore(port, flags); #ifdef CONFIG_SERIAL_SH_SCI_DMA @@ -2390,19 +2394,19 @@ static void sci_reset(struct uart_port *port) unsigned int status; struct sci_port *s = to_sci_port(port); - serial_port_out(port, SCSCR, s->hscif_tot); /* TE=0, RE=0, CKE1=0 */ + sci_serial_out(port, SCSCR, s->hscif_tot); /* TE=0, RE=0, CKE1=0 */ reg = sci_getreg(port, SCFCR); if (reg->size) - serial_port_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST); + sci_serial_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST); sci_clear_SCxSR(port, SCxSR_RDxF_CLEAR(port) & SCxSR_ERROR_CLEAR(port) & SCxSR_BREAK_CLEAR(port)); if (sci_getreg(port, SCLSR)->size) { - status = serial_port_in(port, SCLSR); + status = sci_serial_in(port, SCLSR); status &= ~(SCLSR_TO | SCLSR_ORER); - serial_port_out(port, SCLSR, status); + sci_serial_out(port, SCLSR, status); } if (s->rx_trigger > 1) { @@ -2540,8 +2544,8 @@ done: * It controls the mux to select (H)SCK or frequency divided clock. */ if (best_clk >= 0 && sci_getreg(port, SCCKS)->size) { - serial_port_out(port, SCDL, dl); - serial_port_out(port, SCCKS, sccks); + sci_serial_out(port, SCDL, dl); + sci_serial_out(port, SCCKS, sccks); } uart_port_lock_irqsave(port, &flags); @@ -2554,7 +2558,7 @@ done: bits = tty_get_frame_size(termios->c_cflag); if (sci_getreg(port, SEMR)->size) - serial_port_out(port, SEMR, 0); + sci_serial_out(port, SEMR, 0); if (best_clk >= 0) { if (port->type == PORT_SCIFA || port->type == PORT_SCIFB) @@ -2569,9 +2573,9 @@ done: case 27: smr_val |= SCSMR_SRC_27; break; } smr_val |= cks; - serial_port_out(port, SCSCR, scr_val | s->hscif_tot); - serial_port_out(port, SCSMR, smr_val); - serial_port_out(port, SCBRR, brr); + sci_serial_out(port, SCSCR, scr_val | s->hscif_tot); + sci_serial_out(port, SCSMR, smr_val); + sci_serial_out(port, SCBRR, brr); if (sci_getreg(port, HSSRR)->size) { unsigned int hssrr = srr | HSCIF_SRE; /* Calculate deviation from intended rate at the @@ -2593,7 +2597,7 @@ done: HSCIF_SRHP_MASK; hssrr |= HSCIF_SRDE; } - serial_port_out(port, HSSRR, hssrr); + sci_serial_out(port, HSSRR, hssrr); } /* Wait one bit interval */ @@ -2601,10 +2605,10 @@ done: } else { /* Don't touch the bit rate configuration */ scr_val = s->cfg->scscr & (SCSCR_CKE1 | SCSCR_CKE0); - smr_val |= serial_port_in(port, SCSMR) & + smr_val |= sci_serial_in(port, SCSMR) & (SCSMR_CKEDG | SCSMR_SRC_MASK | SCSMR_CKS); - serial_port_out(port, SCSCR, scr_val | s->hscif_tot); - serial_port_out(port, SCSMR, smr_val); + sci_serial_out(port, SCSCR, scr_val | s->hscif_tot); + sci_serial_out(port, SCSMR, smr_val); } sci_init_pins(port, termios->c_cflag); @@ -2613,7 +2617,7 @@ done: s->autorts = false; reg = sci_getreg(port, SCFCR); if (reg->size) { - unsigned short ctrl = serial_port_in(port, SCFCR); + unsigned short ctrl = sci_serial_in(port, SCFCR); if ((port->flags & UPF_HARD_FLOW) && (termios->c_cflag & CRTSCTS)) { @@ -2630,7 +2634,7 @@ done: */ ctrl &= ~(SCFCR_RFRST | SCFCR_TFRST); - serial_port_out(port, SCFCR, ctrl); + sci_serial_out(port, SCFCR, ctrl); } if (port->flags & UPF_HARD_FLOW) { /* Refresh (Auto) RTS */ @@ -2645,7 +2649,7 @@ done: if (port->type != PORT_SCI) scr_val |= SCSCR_TE; scr_val |= SCSCR_RE | (s->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0)); - serial_port_out(port, SCSCR, scr_val | s->hscif_tot); + sci_serial_out(port, SCSCR, scr_val | s->hscif_tot); if ((srr + 1 == 5) && (port->type == PORT_SCIFA || port->type == PORT_SCIFB)) { /* @@ -3017,9 +3021,6 @@ static int sci_init_single(struct platform_device *dev, port->irq = sci_port->irqs[SCIx_RXI_IRQ]; port->irqflags = 0; - port->serial_in = sci_serial_in; - port->serial_out = sci_serial_out; - return 0; } @@ -3056,21 +3057,21 @@ static void serial_console_write(struct console *co, const char *s, uart_port_lock_irqsave(port, &flags); /* first save SCSCR then disable interrupts, keep clock source */ - ctrl = serial_port_in(port, SCSCR); + ctrl = sci_serial_in(port, SCSCR); ctrl_temp = SCSCR_RE | SCSCR_TE | (sci_port->cfg->scscr & ~(SCSCR_CKE1 | SCSCR_CKE0)) | (ctrl & (SCSCR_CKE1 | SCSCR_CKE0)); - serial_port_out(port, SCSCR, ctrl_temp | sci_port->hscif_tot); + sci_serial_out(port, SCSCR, ctrl_temp | sci_port->hscif_tot); uart_console_write(port, s, count, serial_console_putchar); /* wait until fifo is empty and last bit has been transmitted */ bits = SCxSR_TDxE(port) | SCxSR_TEND(port); - while ((serial_port_in(port, SCxSR) & bits) != bits) + while ((sci_serial_in(port, SCxSR) & bits) != bits) cpu_relax(); /* restore the SCSCR */ - serial_port_out(port, SCSCR, ctrl); + sci_serial_out(port, SCSCR, ctrl); if (locked) uart_port_unlock_irqrestore(port, flags); @@ -3503,8 +3504,6 @@ static int __init early_console_setup(struct earlycon_device *device, if (!device->port.membase) return -ENODEV; - device->port.serial_in = sci_serial_in; - device->port.serial_out = sci_serial_out; device->port.type = type; memcpy(&sci_ports[0].port, &device->port, sizeof(struct uart_port)); port_cfg.type = type; |